Veneer-trimming and stick-jointing attachment for planers.



C. R. HOOPER.

VENEER TRIMMING AND STICK JOINTING ATTZXCHMENT FOR PLANERS. APPLICATION FILED APR. 9, l9l5.

1,209,966. Patented Dec. 26,1916.

CHARLES ROBT. HOOPER, OF SALAMANCA, NEW YORK.

VENEER-TRIMMING AND STICK-JOINTING ATTACHMENT FOR PLANERS.

Specification of Letters Patent.

Patented Dec. 26, 1916.

Application filed April 9, 1915. SerialNo. 20,208.

'1 all whom it may concern Be it known that 1, CHARLES R. Hoorna,

a citizen of the United States of America, and resident of Salamanca, in the county of Cattaraugus, in the State of New York, have invented new and useful Improvements in Veneer-Trimming and Stick-Jointing Attachments for Planers, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improvements in veneer trimming and stick jointing attachment for planers.

So far as I am aware, no machine has ever been produced in which the operator could, at a single operation, trim the veneer and joint the stick, and the primary object of the invention is to produce a device read ily attached or removed from the commercial planing machine, by means of which the operator can trim the veneer and joint the stick at a single operation.

Anotherv object is to provide a device capable of carrying out the first mentioned object in connection with curved panels and sticks, such as swell fronts, etc.

Other objects relate to the details of construction, form and operation, and will more fully appear from the following description, taken in connection with the accompanying drawings, in which- Figure 1 is a side elevation of a portion of a planing machine embodying the attachment of this invention. Fig. 2 is a top plan view of the machine of Fig. 1. Fig. 3 is a cross section on line 3-3, Fig. 1. Fig. 4 is a top plan View of a modified form of attachment. Fig. 5 is a side elevation of the device shown in Fig.4. Fig. 6 is a perspective view of a slightly modified form of device utilizing a diiferent attaching means. Fig. 7 is a vertical cross section of a modified form of the device shown in Fig. 6.

In order that my invention may be clearly understood, I have illustrated portions of a planing machine including the supporting frame 1, the stationary bed 2-, the vertically adjustable bed 3 and the planer head 4-.

The attachment of this invention is adapted to be secured to and supported by the vertically movable or adjustable bed 8 and, in the form shown in Figs. 1, 2 and 3, comprises three strips -5, 6 and 7-, of material such as steel, secured together by screws 8, the intermediate strip -7 being of considerably greater height than the outer strips 5 and -6', and having a Vshaped upper edge adapted to form a line contact with the strip of material supported thereby. This device is provided at one end with a hook shaped member 9 secured to the parts 5-, 6 and 7- by screws 10, and is adapted to hook over the end of the bed 3 adjacent the planer head The opposite end of the attachment, comprising the members 5, 6 and 7, is provided with a clamp 11- adjustable through the attachment and adapted to be held in desired position for grasping the outer end of the planer bed -3- by a thumb screw or nut -12. The outer end of the member 7- is preferably ground to a sharp point at its upper edge and curved or slanted inwardly and downwardly to break off any glue that may come in contact with it, particularly in connection with sticks or pieces of material longer than the tool.

The planer bed 2 is provided with an adjustable guide or fence -13- projecting some distance over the bed 3, and this guide may be moved toward and from the attachment comprising the members -5-, 6 and 7 and held in any desired position of adjustment by means of clamping hand wheels 11 and15.

The intermediate member -7- of the at tachment is adapted to take the place of the bed of the planer and may be adjusted vertically with the bed 3 so as to trim the veneer and joint the stick as desired, and in Fig. 3 a stick -16 is shown having veneer -17 upon opposite sides thereof, the stick adapted to rest upon the upper edge of the member -7 and have a line contact therewith, the stick being held in vertical position by the guide or fence 13. the upper edge of the member '7 does not exceed 3 15 of an inch in thickness, so as to readily cut through any glue that may be on the surface of the stick, and the line contact allows trimming of the veneer and jointing of the stick, irrespective of the irregularities of the veneer, at a single operation.

In Figs. 6 and 7 are illustrated one-piece attachments, as distinguished from the three-piece attachment of Figs. 1, 2 and 3. Each of these is, however, provided with the sharp or \l-shaped upper edge upon which Preferably,

In Figs. 4 and 5, are illustrated an at-.

tachment of this same character but adapted to be utilized in supporting curved panels, such as swell fronts, etc., and comprises an end portion 20-- similar to the attachment shown in Fig. 6, and secured to the bed of the planer by a counter-sunk bolt or screw 21 having its rear end slotted to receive the end of a flexible'band -22 of steel or other suitable material similar to the member 7- of the attachment of Figs. 1,

2 and 3, but sufliciently flexible so as to be bent into any desired are for supporting curved pieces of different radii, one possible position being shown in dotted lines, Fig; 4-. The portions 20' and 22 may be secured together in any suitable manner, as by a transverse screw 23-. The rear end of the strip -22 is preferably provided with a cylindrical portion 2 l of a length substantial-ly equal to the width of the strip 22 and secured thereto in' any suitable manner, and adapted to keep the end of the spring from catching into the veneer while it is passing through. An ordinary and well known sector may be provided for holding the strip 22 in any desired position of arcuate adjustment.

The operation of the device will be readily apparent. The guide or fence '--13 is adjusted to proper position relative to the attachment; the bed 3 of the planer carrying the attachment is adjusted vertically to proper position to trim and joint the piece as desired; the piece or strip passes over the planer head supported by the member 7, with a single line contact, allowing the trimming and jointing of the piece in a single operation. I V

Although I have shown and described one particular construction, form and arrangemerit of parts, I do not desire to limit myself to any particular construction, form, arrangement or specific method of attachment,

' as many changes may be made in the details of such features without departing from the spirit of this invention asset forth in the appended claims.

lVhat I claim is:

1-. Ina machine of the class described, a main planer bed, a cutter projecting up through the same, a relatively long narrow supplementary planer bed in connection therewith and having itsupper longitudinal edge V-shaped in cross section and sufficiently sharp to cut through; the glue on a veneered stick resting thereon, said cutter constituting means for trimmingthe edge of the veneer and for jointing the stick upon the side of said stick in contact with said V-shaped edge, means for holding the stick in vertical position on said V-shaped' edge, and means for securing the supplementary bed to the main planer bed.

2. In a machine of the class described, a supplemental planer bed comprising opposed longitudinally extending clamping strips and an intermediate metallic strip projecting above the clamping strips and having a longitudinal inverted V'shaped upper edge, means for securing the. clamping strip and the intermediate strip together, said clamping strips having means engaging over the edge of the planer bed to secure the supplemental bed in place. 7

3. In a veneer'trimming and jointing attachment for planers, a supplementary planer bed having its upper edge formed for line contact with the material to be supported thereby, said supplementary bed sufficiently flexible so as to be bent into arcs of various radiiv V 4. In a planer, the. combination with a vertically adjustable planer bed of a supplementary flexible bed having one end secured to the planer bed and its opposite end free for lateral movement, whereby the bed may be bent into arcs of various radii.

In witness whereof I have hereunto set my hand this 5th day of April, 1915.

CHARLES ROBT. HOOPER. Witnesses:

M. A. SHELDO F. A. Rrronns.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner or r atents,

Washington, D. G. 

